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CarbonXtreme . Midland Helicopters . HeliProz

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e-HeliDirect HDX 300-600 > HDX300, continuing saga
 
 
TONYVAL
Senior Heliman
Location: Keyport, NJ - USA

Try turning the gyro setting off on your tx

Then Make sure the horn is at 90 degrees, and your tail is centered (blade straight). If not, adjust the rod to the proper length, or move the servo forward or back on the boom to get the blade centered.

Make sure the direction (stick to tail) is correct

Then turn the gyro back on. I actually am finding that a setting of 20% is working well for me

Make sure the gyro direction is correct

Then try it out
05-18-2007 Over year old.
 
 
gmcullan
Veteran
Location: Southbridge, MA

Got to hand it to HeliDirect

I have to hand it to Helidirect regarding some of the issues with the HDX300 main and tail rotor shafts. While checking their web site the other evening, I noticed that they were listing new, hardened steel main and tail rotor shafts for the HDX300. The listed price was $0.00!!!!!!!!! The main shaft is drilled for the Jesus bolt and has the flats pre-ground for the retaining collar, tail belt drive pulley, and the main gear. The tail rotor shaft comes with a very nice composit belt pulley.

Quantities were limited to one each per customer, so I placed an order for the components. You do pay for shipping, but that's no big deal. They arrived today and I tell you, these are STIFF! I had my HDX300 quickly torn down and then installed the new parts. They run completely true. The tail rotor shaft uses some sort of composit belt pully. This also ran very true and appeared to be quieter in operation than the older metal part. This might be due to a better mesh with the drive belt?

Anyway, thanks to HeliDirect for stepping up to some of the HDX300 issues and offering components that at this stage appear to take care of the shaft flex issues

Gerry Cullan,
HB CP2, T-Rex 450 SE & SA, HDX300, MicroHeli Monster, Mini-Titan, Blade 400
05-18-2007 Over year old.
 
 
rccarguy
Senior Heliman
Location: Boston MA

Since I needed a a few odds and ends I placed an order with Heli-Direct and also ordered one of the new mainshafts, should be here on Tuesday. Not sure when I'll get a chance to install it, I'm moving at the end of the week, won't have any time for flying or further refinements for the next week or two.

The ejector rod mainshaft I'm using now is holding up nicely though so doing the swap isn't critical, flew four or five packs today in the light mist that's been falling all afternoon. I'm not even sure this new shaft is going to work in the J-team frame I'm using, although the V3 mainshafts they had previously worked, so this one should fit too.

Still working the bugs out of Mini-Rex, had some time last night to get the GY401 installed and a few needed adjustments made. Took it outside this afternoon for a couple short flights to get it all dialed in and then just flew it normally for the next few packs. It really does fly a lot like my Trex 450, I'm really beginning to like flying this little bird

The brushless motor I'm using is crap though, bought a cheap one and I got what I paid for. Doesn't matter what size pinion I use or where I set the timing on the ESC, the motor is scalding hot after a full pack regardless of the setup, the ESC and battery are just warm so I'm fairly certain it's just the motor that's the problem.

Anyone have a recommendation for a good inrunner that would be suitable for an HDX 300 size machine with a 25 amp ESC and 1320 ma pack?

I learned to fly on a Trex, I learned to crash on a Blade CP...
05-20-2007 Over year old.
 
 
gmcullan
Veteran
Location: Southbridge, MA

I'm running the little HDX300 outrunner. Plenty of power and runs nice and cool. Controlled with a Sonix 18A, soft-start and medium timing. Had a tail servo failure this afternoon. Wild piro but managed to get it down. Tipped on landing, damaging the E-Flite carbon fiber blades and bending the grip spindle. No other damage, with the new hardened steel mainshaft remaining straight and true.

Replaced the spindle and tried a set of the 255 mm fiberglass blades from HeliDirect. I've been flying these blades on my MicroHeli airframe and really like them. After two additional flights on them this afternoon with my HDX300, I can say I like them on this heli too.

Gerry Cullan,
HB CP2, T-Rex 450 SE & SA, HDX300, MicroHeli Monster, Mini-Titan, Blade 400
05-20-2007 Over year old.
 
 
Turner0022
Senior Heliman
Location: Old Hickory Tn

well an update on my 300... i really love this heli , it flys much better than my brushless pro allthough i bought this heli from a rr member who really stuck me with a lot of problems . he must have crashed it and rebuilt it to get rid of . both main shaft and tail shaft , bent . rear servo buzzing and fell apart on first hover, gyro was only workin in one direction, he put the belt on bacwards , the hub was just on the shaft with a screw no nut . but he said it hovered super and he did stationary flips and rolls YEAH RIGHT ! it took me a week and 150.00 to get this bird flyin right . so be careful when they say RTF ...i will never buy another used electric again !

HBK2~Raptor 50v2~Dragonus~blade 400 radix blades
05-20-2007 Over year old.
 
 
gmcullan
Veteran
Location: Southbridge, MA

What a tail!

I've been running the original HDX300 tail with OK results. I finally ordered and received the V2 tail and all I can say is WOW!

Lighter, more compact, extremely smooth in both rotation and pitch changes. Good tail control just got better.

If you've not tried this tail box, give it a try.

My next tweak is going to be an extended carbon fiber battery tray. Projects like this make me glad I didn't throw out all those broken carbon fiber parts from R/C pan car racing.

Gerry Cullan,
HB CP2, T-Rex 450 SE & SA, HDX300, MicroHeli Monster, Mini-Titan, Blade 400
05-24-2007 Over year old.
 
 
Turner0022
Senior Heliman
Location: Old Hickory Tn

i have a shaft question .. the stupid allen screws wont keep snug enough on the shaft .. i loose the tail cause it starts spinning on the shaft . what should i do ? file a flat spot on the shaft? need help this thing is drivin me nuts ...

HBK2~Raptor 50v2~Dragonus~blade 400 radix blades
05-24-2007 Over year old.
 
 
aristo1963
Senior Heliman
Location: goldsboro nc usa

file a flat and make sure you blue loktite the setscrew.
05-24-2007 Over year old.
 
 
gmcullan
Veteran
Location: Southbridge, MA

You'll find the details in another posting, but I stuffed in my HDX300. I was flying with the new, hardened main shaft that is currently available through HeliDirect. There was absolutely NO damage to the shaft at all. And this was with an impact that was great enough to turn the flybar into a pretzle and put a greater than 15 degree bend in the spindle.

So far, the new shaft is hard enough not to bend. But not so hard so as to be brittle and snap. I'm sold!

Gerry Cullan,
HB CP2, T-Rex 450 SE & SA, HDX300, MicroHeli Monster, Mini-Titan, Blade 400
06-04-2007 Over year old.
 
 
gmcullan
Veteran
Location: Southbridge, MA

Steve, as I mentioned in an earlier post, "great job" on the new HDX300 main shaft. This one does the trick for sure. If someone bends or breaks this one, they've got many more problems than a bent main shaft. I still have the spindle shaft that I severely bent. I should take a photo of it and post it. Like I mentioned, a very significantly bent spindle shaft and NO damage at all to the main shaft

Gerry Cullan,
HB CP2, T-Rex 450 SE & SA, HDX300, MicroHeli Monster, Mini-Titan, Blade 400
06-06-2007 Over year old.
 
 
rccarguy
Senior Heliman
Location: Boston MA

Good to know the new shafts hold up well, I got one with my last order from Heli-Direct and eventually I'll get 'round to installing it. For now I'm still using the ejector pin mainshaft, it's taken some abuse and come through with flying colors (I also bent a spindle shaft though not nearly as bad as Gerry did). The 255 mm carbon blades from Heli-Direct also hold up well, I've done a bit of unintentional lawn mowing with them with no damage.

I recently found enough spare time to swap out the cheap brushless and ESC I was running in Mini-Rex for an HDX 300 with the Sonix ESC, much better setup than what I had and it cured some intermittent issues it was experiencing. Finally got the tail servo and gyro playing nice together and now it's really a joy to fly, very, very responsive.

Best of all I can fly the little Heli in the much smaller backyard at the new house, I can do little more than hover the Trex in the same area without knocking into something.

Now that I've got this one fairly well debugged, it's time to turn my attention to the CP Pro belt drive tail conversion from Freestyle Hobby. It's assembled and done a couple test flights, but needs to be setup properly and that I just haven't had time for recently.

I learned to fly on a Trex, I learned to crash on a Blade CP...
06-07-2007 Over year old.
 
 
tangojack
Heliman
Location: Calgary, Alberta, Canada

ejector pin??

Pardon my ignorance........but what exactly is an ejector pin mainshaft?
Does it have anything to do with a Blade CP Pro? I'm really curious!

So much sky.......so little money........
06-07-2007 Over year old.
 
 
gmcullan
Veteran
Location: Southbridge, MA

Some of the main shafts that were available for the HDX300 were more flexible than desired. I experimented with a carbon fiber cored shaft that worked very well. Unfortunately, I'm not in position to make it commercially available at this time. Others experimented with what are called "ejector pins". These are hardened steel shafts that are used by the plastic injection molding industry. Reported performance results have been excellent. There are many on this BB that are using the modified injector pins as main shafts. Required mods to the shaft include cutting it to length and the drilling of a cross-hole to accept the "Jesus-bolt" of the V2 head.

Obviously, HeliDirect has been paying attention to the issues and has responded by offering a ready-to-use hardened main shaft. It is a perfect fit in the HDX300. Performance and durability have been very good.

Gerry Cullan,
HB CP2, T-Rex 450 SE & SA, HDX300, MicroHeli Monster, Mini-Titan, Blade 400
06-08-2007 Over year old.
 
 
tangojack
Heliman
Location: Calgary, Alberta, Canada

Thankyou, Gerry. I guess that answers my question about what ejector shafts are.

Jack in Calgary

So much sky.......so little money........
06-08-2007 Over year old.
 
 
rccarguy
Senior Heliman
Location: Boston MA

New Heli-Direct "hardened" mainshaft- disappointing results

Spent an hour swapping out the ejector pin mainshaft for the new "hardened" Heli-direct mainshaft. Went out in the backyard for a test flight, shaft didn't survive any better than previous versions.

Landing skid got caught in the grass on liftoff leading to a tipover and rotor blade contact with the ground, the mainshaft bent badly with just minimal force against it. I was able to bend it back towards straight by hand, so if this shaft is supposed to be hardened, they need to QC the batch, apparently some of them aren't as hardened as they claim to be.

Either Heli-Direct screwed up and sent me one of the older versions of the shaft, or these are just as bad as the older ones in terms of durability. Package was labeled HDX300-S04V3 so it appears that this is supposed to be one of the new versions, at least that's what I ordered.

I'm greatly disappointed, but it didn't cost me anything but the time to swap it out and I'm not going to lose any sleep over it. I will reinstall the ejector pin mainshaft, it has survived impacts that would turn any and all of Heli-Direct shafts into a pretzel.

UPDATE - I just removed the shaft and found that I can easily cut into it with a file, there's no way this is a hardened shaft.

I learned to fly on a Trex, I learned to crash on a Blade CP...
06-09-2007 Over year old.
 
 
gmcullan
Veteran
Location: Southbridge, MA

I haven't tried to file or modify the new hardened HDX300 shaft, but I did do the old "flex" test comparing it to the earlier version of the shaft. The shaft that I received was distinctly stiffer than the earlier verion.

You might want to contact HeliDirect. It certainly sounds like you've been sent the wrong part in the right bag. I was amazed when I had my crash two weeks ago that the shaft came through with NO damage. I still have to take and post a photo of the spindle. It was simply amazing to bend the spindle and flybar to the degree that I did and have no damage to the main shaft.

Gerry Cullan,
HB CP2, T-Rex 450 SE & SA, HDX300, MicroHeli Monster, Mini-Titan, Blade 400
06-10-2007 Over year old.
 
 
tangojack
Heliman
Location: Calgary, Alberta, Canada

Main shaft question

Hi Gerry
Question for ya:
How long, exactly, is the main shaft, using the autorotation main gear and the stock plastic head on a CP Pro?
My stock main gear and shaft turned into a pretzel last night after I crashed. I straightened it out as best I could, using the old drill press method, but........I'm afraid I may have to find a new main shaft for this sucker! I heard about using the shafts from an old CD rom player. Are they any good to use? Any help you can give would be greatly appreciated. Thankyou.

ps What is an ejector pin mainshaft? I hear a lot about this, too, but I don't know what it is referring to!

Jack in Calgary

So much sky.......so little money........
06-11-2007 Over year old.
 
 
Ducati-Rider
Senior Heliman
Location: Arroyo Grande, CA

HDX Back at it - ready for launch.

I picked up the ingredients for an HDX in February
and assembled the heli - the head wobbled so badly;
I shelved it till the ejector, V3 shaft and head
problem were solved.

Yesterday during the Pocono rain out, I installed an ejector shaft
and new tail with macho bearings from Aristo in NC.

Gawd - this thing is smooth as butter, I let it sit next to
my pair of T450s and I guess they mated or something.

Still have to tie up wires and locate the componets, but
spooling up with no blades was amaxing -

Thanks to you guys who worked through the bugs. I believe with
some patience and tinkering - the HDX can be a fine baby Rex.

A little tail heavy - needs a battery extension plate
Anybody made a plate that slips between the fram and extends
the nose?

The HDX sitting next to my Trex 600 is amusing.
06-11-2007 Over year old.
 
 
gmcullan
Veteran
Location: Southbridge, MA

I made a battery pack extension from 0.032" lexan. This let me move the LiPo pack as far forward as possible. It is super-glued to the small cross-frame piece and extends forward. The down angle was eyeballed to match the angle at the front of the frame. I have one of those nice bending brakes/shears from MicroMark. While pricey, this tool sees lots of use, much more than I expected. Anyway, a combination of velcro sheet between the plate and the LiPo pack and velcro straps does a great job of holding the LiPo pack in place.

Gerry Cullan,
HB CP2, T-Rex 450 SE & SA, HDX300, MicroHeli Monster, Mini-Titan, Blade 400
06-11-2007 Over year old.
 
 
aristo1963
Senior Heliman
Location: goldsboro nc usa

just use a trex cf plate with 2 alu risers

06-12-2007 Over year old.
 
 
18 pages [ <<    <     10      11     ( 12 )     13      14     NEXT    >> ]17057 viewsPOST REPLY
ZoomsHobbies . HeliHobby . Ron’s HeliProz South

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e-HeliDirect HDX 300-600 > HDX300, continuing saga
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